/*! FixedColumns 3.3.2
 * ©2010-2020 SpryMedia Ltd - datatables.net/license
 */

/**
 * @summary     FixedColumns
 * @description Freeze columns in place on a scrolling DataTable
 * @version     3.3.2
 * @file        dataTables.fixedColumns.js
 * @author      SpryMedia Ltd (www.sprymedia.co.uk)
 * @contact     www.sprymedia.co.uk/contact
 * @copyright   Copyright 2010-2020 SpryMedia Ltd.
 *
 * This source file is free software, available under the following license:
 *   MIT license - http://datatables.net/license/mit
 *
 * This source file is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the license files for details.
 *
 * For details please refer to: http://www.datatables.net
 */
(function (factory) {
  if (typeof define === 'function' && define.amd) {
    // AMD
    define(['jquery', 'datatables.net'], function ($) {
      return factory($, window, document);
    });
  } else if (typeof exports === 'object') {
    // CommonJS
    module.exports = function (root, $) {
      if (!root) {
        root = window;
      }

      if (!$ || !$.fn.dataTable) {
        $ = require('datatables.net')(root, $).$;
      }

      return factory($, root, root.document);
    };
  } else {
    // Browser
    factory(jQuery, window, document);
  }
}(function ($, window, document, undefined) {
  'use strict';
  var DataTable = $.fn.dataTable;
  var _firefoxScroll;

  /**
   * When making use of DataTables' x-axis scrolling feature, you may wish to
   * fix the left most column in place. This plug-in for DataTables provides
   * exactly this option (note for non-scrolling tables, please use the
   * FixedHeader plug-in, which can fix headers and footers). Key
   * features include:
   *
   * * Freezes the left or right most columns to the side of the table
   * * Option to freeze two or more columns
   * * Full integration with DataTables' scrolling options
   * * Speed - FixedColumns is fast in its operation
   *
   *  @class
   *  @constructor
   *  @global
   *  @param {object} dt DataTables instance. With DataTables 1.10 this can also
   *    be a jQuery collection, a jQuery selector, DataTables API instance or
   *    settings object.
   *  @param {object} [init={}] Configuration object for FixedColumns. Options are
   *    defined by {@link FixedColumns.defaults}
   *
   *  @requires jQuery 1.7+
   *  @requires DataTables 1.8.0+
   *
   *  @example
   *      var table = $('#example').dataTable( {
   *        "scrollX": "100%"
   *      } );
   *      new $.fn.dataTable.fixedColumns( table );
   */
  var FixedColumns = function (dt, init) {
    var that = this;

    /* Sanity check - you just know it will happen */
    if (!(this instanceof FixedColumns)) {
      alert("FixedColumns warning: FixedColumns must be initialised with the 'new' keyword.");
      return;
    }

    if (init === undefined || init === true) {
      init = {};
    }

    // Use the DataTables Hungarian notation mapping method, if it exists to
    // provide forwards compatibility for camel case variables
    var camelToHungarian = $.fn.dataTable.camelToHungarian;
    if (camelToHungarian) {
      camelToHungarian(FixedColumns.defaults, FixedColumns.defaults, true);
      camelToHungarian(FixedColumns.defaults, init);
    }

    // v1.10 allows the settings object to be got form a number of sources
    var dtSettings = new $.fn.dataTable.Api(dt).settings()[0];

    /**
     * Settings object which contains customisable information for FixedColumns instance
     * @namespace
     * @extends FixedColumns.defaults
     * @private
     */
    this.s = {
      /**
       * DataTables settings objects
       *  @type     object
       *  @default  Obtained from DataTables instance
       */
      "dt": dtSettings,

      /**
       * Number of columns in the DataTable - stored for quick access
       *  @type     int
       *  @default  Obtained from DataTables instance
       */
      "iTableColumns": dtSettings.aoColumns.length,

      /**
       * Original outer widths of the columns as rendered by DataTables - used to calculate
       * the FixedColumns grid bounding box
       *  @type     array.<int>
       *  @default  []
       */
      "aiOuterWidths": [],

      /**
       * Original inner widths of the columns as rendered by DataTables - used to apply widths
       * to the columns
       *  @type     array.<int>
       *  @default  []
       */
      "aiInnerWidths": [],


      /**
       * Is the document layout right-to-left
       * @type boolean
       */
      rtl: $(dtSettings.nTable).css('direction') === 'rtl'
    };


    /**
     * DOM elements used by the class instance
     * @namespace
     * @private
     *
     */
    this.dom = {
      /**
       * DataTables scrolling element
       *  @type     node
       *  @default  null
       */
      "scroller": null,

      /**
       * DataTables header table
       *  @type     node
       *  @default  null
       */
      "header": null,

      /**
       * DataTables body table
       *  @type     node
       *  @default  null
       */
      "body": null,

      /**
       * DataTables footer table
       *  @type     node
       *  @default  null
       */
      "footer": null,

      /**
       * Display grid elements
       * @namespace
       */
      "grid": {
        /**
         * Grid wrapper. This is the container element for the 3x3 grid
         *  @type     node
         *  @default  null
         */
        "wrapper": null,

        /**
         * DataTables scrolling element. This element is the DataTables
         * component in the display grid (making up the main table - i.e.
         * not the fixed columns).
         *  @type     node
         *  @default  null
         */
        "dt": null,

        /**
         * Left fixed column grid components
         * @namespace
         */
        "left": {
          "wrapper": null,
          "head": null,
          "body": null,
          "foot": null
        },

        /**
         * Right fixed column grid components
         * @namespace
         */
        "right": {
          "wrapper": null,
          "head": null,
          "body": null,
          "foot": null
        }
      },

      /**
       * Cloned table nodes
       * @namespace
       */
      "clone": {
        /**
         * Left column cloned table nodes
         * @namespace
         */
        "left": {
          /**
           * Cloned header table
           *  @type     node
           *  @default  null
           */
          "header": null,

          /**
           * Cloned body table
           *  @type     node
           *  @default  null
           */
          "body": null,

          /**
           * Cloned footer table
           *  @type     node
           *  @default  null
           */
          "footer": null
        },

        /**
         * Right column cloned table nodes
         * @namespace
         */
        "right": {
          /**
           * Cloned header table
           *  @type     node
           *  @default  null
           */
          "header": null,

          /**
           * Cloned body table
           *  @type     node
           *  @default  null
           */
          "body": null,

          /**
           * Cloned footer table
           *  @type     node
           *  @default  null
           */
          "footer": null
        }
      }
    };

    if (dtSettings._oFixedColumns) {
      throw 'FixedColumns already initialised on this table';
    }

    /* Attach the instance to the DataTables instance so it can be accessed easily */
    dtSettings._oFixedColumns = this;

    /* Let's do it */
    if (!dtSettings._bInitComplete) {
      dtSettings.oApi._fnCallbackReg(dtSettings, 'aoInitComplete', function () {
        that._fnConstruct(init);
      }, 'FixedColumns');
    } else {
      this._fnConstruct(init);
    }
  };


  $.extend(FixedColumns.prototype, {
    /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
     * Public methods
     * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

    /**
     * Update the fixed columns - including headers and footers. Note that FixedColumns will
     * automatically update the display whenever the host DataTable redraws.
     *  @returns {void}
     *  @example
     *      var table = $('#example').dataTable( {
     *          "scrollX": "100%"
     *      } );
     *      var fc = new $.fn.dataTable.fixedColumns( table );
     *
     *      // at some later point when the table has been manipulated....
     *      fc.fnUpdate();
     */
    "fnUpdate": function () {
      this._fnDraw(true);
    },


    /**
     * Recalculate the resizes of the 3x3 grid that FixedColumns uses for display of the table.
     * This is useful if you update the width of the table container. Note that FixedColumns will
     * perform this function automatically when the window.resize event is fired.
     *  @returns {void}
     *  @example
     *      var table = $('#example').dataTable( {
     *          "scrollX": "100%"
     *      } );
     *      var fc = new $.fn.dataTable.fixedColumns( table );
     *
     *      // Resize the table container and then have FixedColumns adjust its layout....
     *      $('#content').width( 1200 );
     *      fc.fnRedrawLayout();
     */
    "fnRedrawLayout": function () {
      this._fnColCalc();
      this._fnGridLayout();
      this.fnUpdate();
    },


    /**
     * Mark a row such that it's height should be recalculated when using 'semiauto' row
     * height matching. This function will have no effect when 'none' or 'auto' row height
     * matching is used.
     *  @param   {Node} nTr TR element that should have it's height recalculated
     *  @returns {void}
     *  @example
     *      var table = $('#example').dataTable( {
     *          "scrollX": "100%"
     *      } );
     *      var fc = new $.fn.dataTable.fixedColumns( table );
     *
     *      // manipulate the table - mark the row as needing an update then update the table
     *      // this allows the redraw performed by DataTables fnUpdate to recalculate the row
     *      // height
     *      fc.fnRecalculateHeight();
     *      table.fnUpdate( $('#example tbody tr:eq(0)')[0], ["insert date", 1, 2, 3 ... ]);
     */
    "fnRecalculateHeight": function (nTr) {
      delete nTr._DTTC_iHeight;
      nTr.style.height = 'auto';
    },


    /**
     * Set the height of a given row - provides cross browser compatibility
     *  @param   {Node} nTarget TR element that should have it's height recalculated
     *  @param   {int} iHeight Height in pixels to set
     *  @returns {void}
     *  @example
     *      var table = $('#example').dataTable( {
     *          "scrollX": "100%"
     *      } );
     *      var fc = new $.fn.dataTable.fixedColumns( table );
     *
     *      // You may want to do this after manipulating a row in the fixed column
     *      fc.fnSetRowHeight( $('#example tbody tr:eq(0)')[0], 50 );
     */
    "fnSetRowHeight": function (nTarget, iHeight) {
      nTarget.style.height = iHeight + "px";
    },


    /**
     * Get data index information about a row or cell in the table body.
     * This function is functionally identical to fnGetPosition in DataTables,
     * taking the same parameter (TH, TD or TR node) and returning exactly the
     * the same information (data index information). THe difference between
     * the two is that this method takes into account the fixed columns in the
     * table, so you can pass in nodes from the master table, or the cloned
     * tables and get the index position for the data in the main table.
     *  @param {node} node TR, TH or TD element to get the information about
     *  @returns {int} If nNode is given as a TR, then a single index is
     *    returned, or if given as a cell, an array of [row index, column index
     *    (visible), column index (all)] is given.
     */
    "fnGetPosition": function (node) {
      var idx;
      var inst = this.s.dt.oInstance;

      if (!$(node).parents('.DTFC_Cloned').length) {
        // Not in a cloned table
        return inst.fnGetPosition(node);
      } else {
        // Its in the cloned table, so need to look up position
        if (node.nodeName.toLowerCase() === 'tr') {
          idx = $(node).index();
          return inst.fnGetPosition($('tr', this.s.dt.nTBody)[idx]);
        } else {
          var colIdx = $(node).index();
          idx = $(node.parentNode).index();
          var row = inst.fnGetPosition($('tr', this.s.dt.nTBody)[idx]);

          return [
            row,
            colIdx,
            inst.oApi._fnVisibleToColumnIndex(this.s.dt, colIdx)
          ];
        }
      }
    },

    fnToFixedNode: function (rowIdx, colIdx) {
      var found;

      if (colIdx < this.s.iLeftColumns) {
        found = $(this.dom.clone.left.body).find('[data-dt-row=' + rowIdx + '][data-dt-column=' + colIdx + ']');
      } else if (colIdx >= this.s.iRightColumns) {
        found = $(this.dom.clone.right.body).find('[data-dt-row=' + rowIdx + '][data-dt-column=' + colIdx + ']');
      }

      if (found && found.length) {
        return found[0];
      }

      // Fallback - non-fixed node
      var table = new $.fn.dataTable.Api(this.s.dt);
      return table.cell(rowIdx, colIdx).node();
    },


    /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
     * Private methods (they are of course public in JS, but recommended as private)
     * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

    /**
     * Initialisation for FixedColumns
     *  @param   {Object} oInit User settings for initialisation
     *  @returns {void}
     *  @private
     */
    "_fnConstruct": function (oInit) {
      var i, iLen, iWidth,
        that = this;

      /* Sanity checking */
      if (typeof this.s.dt.oInstance.fnVersionCheck != 'function' ||
        this.s.dt.oInstance.fnVersionCheck('1.8.0') !== true) {
        alert("FixedColumns " + FixedColumns.VERSION + " required DataTables 1.8.0 or later. " +
          "Please upgrade your DataTables installation");
        return;
      }

      if (this.s.dt.oScroll.sX === "") {
        this.s.dt.oInstance.oApi._fnLog(this.s.dt, 1, "FixedColumns is not needed (no " +
          "x-scrolling in DataTables enabled), so no action will be taken. Use 'FixedHeader' for " +
          "column fixing when scrolling is not enabled");
        return;
      }

      /* Apply the settings from the user / defaults */
      this.s = $.extend(true, this.s, FixedColumns.defaults, oInit);

      /* Set up the DOM as we need it and cache nodes */
      var classes = this.s.dt.oClasses;
      this.dom.grid.dt = $(this.s.dt.nTable).parents('div.' + classes.sScrollWrapper)[0];
      this.dom.scroller = $('div.' + classes.sScrollBody, this.dom.grid.dt)[0];

      /* Set up the DOM that we want for the fixed column layout grid */
      this._fnColCalc();
      this._fnGridSetup();

      /* Event handlers */
      var mouseController;
      var mouseDown = false;

      // When the mouse is down (drag scroll) the mouse controller cannot
      // change, as the browser keeps the original element as the scrolling one
      $(this.s.dt.nTableWrapper).on('mousedown.DTFC', function (e) {
        if (e.button === 0) {
          mouseDown = true;

          $(document).one('mouseup', function () {
            mouseDown = false;
          });
        }
      });

      // When the body is scrolled - scroll the left and right columns
      $(this.dom.scroller)
        .on('mouseover.DTFC touchstart.DTFC', function () {
          if (!mouseDown) {
            mouseController = 'main';
          }
        })
        .on('scroll.DTFC', function (e) {
          if (!mouseController && e.originalEvent) {
            mouseController = 'main';
          }

          if (mouseController === 'main' || mouseController === 'key') {
            if (that.s.iLeftColumns > 0) {
              that.dom.grid.left.liner.scrollTop = that.dom.scroller.scrollTop;
            }
            if (that.s.iRightColumns > 0) {
              that.dom.grid.right.liner.scrollTop = that.dom.scroller.scrollTop;
            }
          }
        });

      var wheelType = 'onwheel' in document.createElement('div') ?
        'wheel.DTFC' :
        'mousewheel.DTFC';

      if (that.s.iLeftColumns > 0) {
        // When scrolling the left column, scroll the body and right column
        $(that.dom.grid.left.liner)
          .on('mouseover.DTFC touchstart.DTFC', function () {
            if (!mouseDown && mouseController !== 'key') {
              mouseController = 'left';
            }
          })
          .on('scroll.DTFC', function (e) {
            if (!mouseController && e.originalEvent) {
              mouseController = 'left';
            }

            if (mouseController === 'left') {
              that.dom.scroller.scrollTop = that.dom.grid.left.liner.scrollTop;
              if (that.s.iRightColumns > 0) {
                that.dom.grid.right.liner.scrollTop = that.dom.grid.left.liner.scrollTop;
              }
            }
          })
          .on(wheelType, function (e) {
            mouseController = 'left';

            // Pass horizontal scrolling through
            var xDelta = e.type === 'wheel' ?
              -e.originalEvent.deltaX :
              e.originalEvent.wheelDeltaX;
            that.dom.scroller.scrollLeft -= xDelta;
          });

        // Header will not trigger scroll on left column, but might on `main` (sorting)
        $(that.dom.grid.left.head).on('mouseover.DTFC touchstart.DTFC', function () {
          mouseController = 'main';
        });
      }

      if (that.s.iRightColumns > 0) {
        // When scrolling the right column, scroll the body and the left column
        $(that.dom.grid.right.liner)
          .on('mouseover.DTFC touchstart.DTFC', function () {
            if (!mouseDown && mouseController !== 'key') {
              mouseController = 'right';
            }
          })
          .on('scroll.DTFC', function (e) {
            if (!mouseController && e.originalEvent) {
              mouseController = 'right';
            }

            if (mouseController === 'right') {
              that.dom.scroller.scrollTop = that.dom.grid.right.liner.scrollTop;
              if (that.s.iLeftColumns > 0) {
                that.dom.grid.left.liner.scrollTop = that.dom.grid.right.liner.scrollTop;
              }
            }
          })
          .on(wheelType, function (e) {
            mouseController = 'right';

            // Pass horizontal scrolling through
            var xDelta = e.type === 'wheel' ?
              -e.originalEvent.deltaX :
              e.originalEvent.wheelDeltaX;
            that.dom.scroller.scrollLeft -= xDelta;
          });

        $(that.dom.grid.right.head).on('mouseover.DTFC touchstart.DTFC', function () {
          mouseController = 'main';
        });
      }

      $(window).on('resize.DTFC', function () {
        that._fnGridLayout.call(that);
      });

      var bFirstDraw = true;
      var jqTable = $(this.s.dt.nTable);

      jqTable
        .on('draw.dt.DTFC', function () {
          that._fnColCalc();
          that._fnDraw.call(that, bFirstDraw);
          bFirstDraw = false;
        })
        .on('key-focus.dt.DTFC', function () {
          // KeyTable navigation needs to be main focused
          mouseController = 'key';
        })
        .on('column-sizing.dt.DTFC', function () {
          that._fnColCalc();
          that._fnGridLayout(that);
        })
        .on('column-visibility.dt.DTFC', function (e, settings, column, vis, recalc) {
          if (recalc === undefined || recalc) {
            that._fnColCalc();
            that._fnGridLayout(that);
            that._fnDraw(true);
          }
        })
        .on('select.dt.DTFC deselect.dt.DTFC', function (e, dt, type, indexes) {
          if (e.namespace === 'dt') {
            that._fnDraw(false);
          }
        })
        .on('position.dts.dt.DTFC', function (e, tableTop) {
          // Sync up with Scroller
          if (that.dom.grid.left.body) {
            $(that.dom.grid.left.body).find('table').eq(0).css('top', tableTop);
          }

          if (that.dom.grid.right.body) {
            $(that.dom.grid.right.body).find('table').eq(0).css('top', tableTop);
          }
        })
        .on('destroy.dt.DTFC', function () {
          jqTable.off('.DTFC');

          $(that.dom.scroller).off('.DTFC');
          $(window).off('.DTFC');
          $(that.s.dt.nTableWrapper).off('.DTFC');

          $(that.dom.grid.left.liner).off('.DTFC ' + wheelType);
          $(that.dom.grid.left.wrapper).remove();

          $(that.dom.grid.right.liner).off('.DTFC ' + wheelType);
          $(that.dom.grid.right.wrapper).remove();
        });

      /* Get things right to start with - note that due to adjusting the columns, there must be
       * another redraw of the main table. It doesn't need to be a full redraw however.
       */
      this._fnGridLayout();
      this.s.dt.oInstance.fnDraw(false);
    },


    /**
     * Calculate the column widths for the grid layout
     *  @returns {void}
     *  @private
     */
    "_fnColCalc": function () {
      var that = this;
      var iLeftWidth = 0;
      var iRightWidth = 0;

      this.s.aiInnerWidths = [];
      this.s.aiOuterWidths = [];

      $.each(this.s.dt.aoColumns, function (i, col) {
        var th = $(col.nTh);
        var border;

        if (!th.filter(':visible').length) {
          that.s.aiInnerWidths.push(0);
          that.s.aiOuterWidths.push(0);
        } else {
          // Inner width is used to assign widths to cells
          // Outer width is used to calculate the container
          var iWidth = th.outerWidth();

          // When working with the left most-cell, need to add on the
          // table's border to the outerWidth, since we need to take
          // account of it, but it isn't in any cell
          if (that.s.aiOuterWidths.length === 0) {
            border = $(that.s.dt.nTable).css('border-left-width');
            iWidth += typeof border === 'string' && border.indexOf('px') === -1 ?
              1 :
              parseInt(border, 10);
          }

          // Likewise with the final column on the right
          if (that.s.aiOuterWidths.length === that.s.dt.aoColumns.length - 1) {
            border = $(that.s.dt.nTable).css('border-right-width');
            iWidth += typeof border === 'string' && border.indexOf('px') === -1 ?
              1 :
              parseInt(border, 10);
          }

          that.s.aiOuterWidths.push(iWidth);
          that.s.aiInnerWidths.push(th.width());

          if (i < that.s.iLeftColumns) {
            iLeftWidth += iWidth;
          }

          if (that.s.iTableColumns - that.s.iRightColumns <= i) {
            iRightWidth += iWidth;
          }
        }
      });

      this.s.iLeftWidth = iLeftWidth;
      this.s.iRightWidth = iRightWidth;
    },


    /**
     * Set up the DOM for the fixed column. The way the layout works is to create a 1x3 grid
     * for the left column, the DataTable (for which we just reuse the scrolling element DataTable
     * puts into the DOM) and the right column. In each of he two fixed column elements there is a
     * grouping wrapper element and then a head, body and footer wrapper. In each of these we then
     * place the cloned header, body or footer tables. This effectively gives as 3x3 grid structure.
     *  @returns {void}
     *  @private
     */
    "_fnGridSetup": function () {
      var that = this;
      var oOverflow = this._fnDTOverflow();
      var block;

      this.dom.body = this.s.dt.nTable;
      this.dom.header = this.s.dt.nTHead.parentNode;
      this.dom.header.parentNode.parentNode.style.position = "relative";

      var nSWrapper =
        $('<div class="DTFC_ScrollWrapper" style="position:relative; clear:both;">' +
          '<div class="DTFC_LeftWrapper" style="position:absolute; top:0; left:0;" aria-hidden="true">' +
          '<div class="DTFC_LeftHeadWrapper" style="position:relative; top:0; left:0; overflow:hidden;"></div>' +
          '<div class="DTFC_LeftBodyWrapper" style="position:relative; top:0; left:0; height:0; overflow:hidden;">' +
          '<div class="DTFC_LeftBodyLiner" style="position:relative; top:0; left:0; overflow-y:scroll;"></div>' +
          '</div>' +
          '<div class="DTFC_LeftFootWrapper" style="position:relative; top:0; left:0; overflow:hidden;"></div>' +
          '</div>' +
          '<div class="DTFC_RightWrapper" style="position:absolute; top:0; right:0;" aria-hidden="true">' +
          '<div class="DTFC_RightHeadWrapper" style="position:relative; top:0; left:0;">' +
          '<div class="DTFC_RightHeadBlocker DTFC_Blocker" style="position:absolute; top:0; bottom:0;"></div>' +
          '</div>' +
          '<div class="DTFC_RightBodyWrapper" style="position:relative; top:0; left:0; height:0; overflow:hidden;">' +
          '<div class="DTFC_RightBodyLiner" style="position:relative; top:0; left:0; overflow-y:scroll;"></div>' +
          '</div>' +
          '<div class="DTFC_RightFootWrapper" style="position:relative; top:0; left:0;">' +
          '<div class="DTFC_RightFootBlocker DTFC_Blocker" style="position:absolute; top:0; bottom:0;"></div>' +
          '</div>' +
          '</div>' +
          '</div>')[0];
      var nLeft = nSWrapper.childNodes[0];
      var nRight = nSWrapper.childNodes[1];

      this.dom.grid.dt.parentNode.insertBefore(nSWrapper, this.dom.grid.dt);
      nSWrapper.appendChild(this.dom.grid.dt);

      this.dom.grid.wrapper = nSWrapper;

      if (this.s.iLeftColumns > 0) {
        this.dom.grid.left.wrapper = nLeft;
        this.dom.grid.left.head = nLeft.childNodes[0];
        this.dom.grid.left.body = nLeft.childNodes[1];
        this.dom.grid.left.liner = $('div.DTFC_LeftBodyLiner', nSWrapper)[0];

        nSWrapper.appendChild(nLeft);
      }

      if (this.s.iRightColumns > 0) {
        this.dom.grid.right.wrapper = nRight;
        this.dom.grid.right.head = nRight.childNodes[0];
        this.dom.grid.right.body = nRight.childNodes[1];
        this.dom.grid.right.liner = $('div.DTFC_RightBodyLiner', nSWrapper)[0];

        nRight.style.right = oOverflow.bar + "px";

        block = $('div.DTFC_RightHeadBlocker', nSWrapper)[0];
        block.style.width = oOverflow.bar + "px";
        block.style.right = -oOverflow.bar + "px";
        this.dom.grid.right.headBlock = block;

        block = $('div.DTFC_RightFootBlocker', nSWrapper)[0];
        block.style.width = oOverflow.bar + "px";
        block.style.right = -oOverflow.bar + "px";
        this.dom.grid.right.footBlock = block;

        nSWrapper.appendChild(nRight);
      }

      if (this.s.dt.nTFoot) {
        this.dom.footer = this.s.dt.nTFoot.parentNode;
        if (this.s.iLeftColumns > 0) {
          this.dom.grid.left.foot = nLeft.childNodes[2];
        }
        if (this.s.iRightColumns > 0) {
          this.dom.grid.right.foot = nRight.childNodes[2];
        }
      }

      // RTL support - swap the position of the left and right columns (#48)
      if (this.s.rtl) {
        $('div.DTFC_RightHeadBlocker', nSWrapper).css({
          left: -oOverflow.bar + 'px',
          right: ''
        });
      }
    },


    /**
     * Style and position the grid used for the FixedColumns layout
     *  @returns {void}
     *  @private
     */
    "_fnGridLayout": function () {
      var that = this;
      var oGrid = this.dom.grid;
      var iWidth = $(oGrid.wrapper).width();
      var iBodyHeight = this.s.dt.nTable.parentNode.offsetHeight;
      var iFullHeight = this.s.dt.nTable.parentNode.parentNode.offsetHeight;
      var oOverflow = this._fnDTOverflow();
      var iLeftWidth = this.s.iLeftWidth;
      var iRightWidth = this.s.iRightWidth;
      var rtl = $(this.dom.body).css('direction') === 'rtl';
      var wrapper;
      var scrollbarAdjust = function (node, width) {
        if (!oOverflow.bar) {
          // If there is no scrollbar (Macs) we need to hide the auto scrollbar
          node.style.width = (width + 20) + "px";
          node.style.paddingRight = "20px";
          node.style.boxSizing = "border-box";
        } else if (that._firefoxScrollError()) {
          // See the above function for why this is required
          if ($(node).height() > 34) {
            node.style.width = (width + oOverflow.bar) + "px";
          }
        } else {
          // Otherwise just overflow by the scrollbar
          node.style.width = (width + oOverflow.bar) + "px";
        }
      };

      // When x scrolling - don't paint the fixed columns over the x scrollbar
      if (oOverflow.x) {
        iBodyHeight -= oOverflow.bar;
      }

      oGrid.wrapper.style.height = iFullHeight + "px";

      if (this.s.iLeftColumns > 0) {
        wrapper = oGrid.left.wrapper;
        wrapper.style.width = iLeftWidth + 'px';
        wrapper.style.height = '1px';

        // Swap the position of the left and right columns for rtl (#48)
        // This is always up against the edge, scrollbar on the far side
        if (rtl) {
          wrapper.style.left = '';
          wrapper.style.right = 0;
        } else {
          wrapper.style.left = 0;
          wrapper.style.right = '';
        }

        oGrid.left.body.style.height = iBodyHeight + "px";
        if (oGrid.left.foot) {
          oGrid.left.foot.style.top = (oOverflow.x ? oOverflow.bar : 0) + "px"; // shift footer for scrollbar
        }

        scrollbarAdjust(oGrid.left.liner, iLeftWidth);
        oGrid.left.liner.style.height = iBodyHeight + "px";
        oGrid.left.liner.style.maxHeight = iBodyHeight + "px";
      }

      if (this.s.iRightColumns > 0) {
        wrapper = oGrid.right.wrapper;
        wrapper.style.width = iRightWidth + 'px';
        wrapper.style.height = '1px';

        // Need to take account of the vertical scrollbar
        if (this.s.rtl) {
          wrapper.style.left = oOverflow.y ? oOverflow.bar + 'px' : 0;
          wrapper.style.right = '';
        } else {
          wrapper.style.left = '';
          wrapper.style.right = oOverflow.y ? oOverflow.bar + 'px' : 0;
        }

        oGrid.right.body.style.height = iBodyHeight + "px";
        if (oGrid.right.foot) {
          oGrid.right.foot.style.top = (oOverflow.x ? oOverflow.bar : 0) + "px";
        }

        scrollbarAdjust(oGrid.right.liner, iRightWidth);
        oGrid.right.liner.style.height = iBodyHeight + "px";
        oGrid.right.liner.style.maxHeight = iBodyHeight + "px";

        oGrid.right.headBlock.style.display = oOverflow.y ? 'block' : 'none';
        oGrid.right.footBlock.style.display = oOverflow.y ? 'block' : 'none';
      }
    },


    /**
     * Get information about the DataTable's scrolling state - specifically if the table is scrolling
     * on either the x or y axis, and also the scrollbar width.
     *  @returns {object} Information about the DataTables scrolling state with the properties:
     *    'x', 'y' and 'bar'
     *  @private
     */
    "_fnDTOverflow": function () {
      var nTable = this.s.dt.nTable;
      var nTableScrollBody = nTable.parentNode;
      var out = {
        "x": false,
        "y": false,
        "bar": this.s.dt.oScroll.iBarWidth
      };

      if (nTable.offsetWidth > nTableScrollBody.clientWidth) {
        out.x = true;
      }

      if (nTable.offsetHeight > nTableScrollBody.clientHeight) {
        out.y = true;
      }

      return out;
    },


    /**
     * Clone and position the fixed columns
     *  @returns {void}
     *  @param   {Boolean} bAll Indicate if the header and footer should be updated as well (true)
     *  @private
     */
    "_fnDraw": function (bAll) {
      this._fnGridLayout();
      this._fnCloneLeft(bAll);
      this._fnCloneRight(bAll);

      $(this.dom.scroller).trigger('scroll');

      /* Draw callback function */
      if (this.s.fnDrawCallback !== null) {
        this.s.fnDrawCallback.call(this, this.dom.clone.left, this.dom.clone.right);
      }

      /* Event triggering */
      $(this).trigger('draw.dtfc', {
        "leftClone": this.dom.clone.left,
        "rightClone": this.dom.clone.right
      });
    },


    /**
     * Clone the right columns
     *  @returns {void}
     *  @param   {Boolean} bAll Indicate if the header and footer should be updated as well (true)
     *  @private
     */
    "_fnCloneRight": function (bAll) {
      if (this.s.iRightColumns <= 0) {
        return;
      }

      var that = this,
        i, jq,
        aiColumns = [];

      for (i = this.s.iTableColumns - this.s.iRightColumns; i < this.s.iTableColumns; i++) {
        if (this.s.dt.aoColumns[i].bVisible) {
          aiColumns.push(i);
        }
      }

      this._fnClone(this.dom.clone.right, this.dom.grid.right, aiColumns, bAll);
    },


    /**
     * Clone the left columns
     *  @returns {void}
     *  @param   {Boolean} bAll Indicate if the header and footer should be updated as well (true)
     *  @private
     */
    "_fnCloneLeft": function (bAll) {
      if (this.s.iLeftColumns <= 0) {
        return;
      }

      var that = this,
        i, jq,
        aiColumns = [];

      for (i = 0; i < this.s.iLeftColumns; i++) {
        if (this.s.dt.aoColumns[i].bVisible) {
          aiColumns.push(i);
        }
      }

      this._fnClone(this.dom.clone.left, this.dom.grid.left, aiColumns, bAll);
    },


    /**
     * Make a copy of the layout object for a header or footer element from DataTables. Note that
     * this method will clone the nodes in the layout object.
     *  @returns {Array} Copy of the layout array
     *  @param   {Object} aoOriginal Layout array from DataTables (aoHeader or aoFooter)
     *  @param   {Object} aiColumns Columns to copy
     *  @param   {boolean} events Copy cell events or not
     *  @private
     */
    "_fnCopyLayout": function (aoOriginal, aiColumns, events) {
      var aReturn = [];
      var aClones = [];
      var aCloned = [];

      for (var i = 0, iLen = aoOriginal.length; i < iLen; i++) {
        var aRow = [];
        aRow.nTr = $(aoOriginal[i].nTr).clone(events, false)[0];

        for (var j = 0, jLen = this.s.iTableColumns; j < jLen; j++) {
          if ($.inArray(j, aiColumns) === -1) {
            continue;
          }

          var iCloned = $.inArray(aoOriginal[i][j].cell, aCloned);
          if (iCloned === -1) {
            var nClone = $(aoOriginal[i][j].cell).clone(events, false)[0];
            aClones.push(nClone);
            aCloned.push(aoOriginal[i][j].cell);

            aRow.push({
              "cell": nClone,
              "unique": aoOriginal[i][j].unique
            });
          } else {
            aRow.push({
              "cell": aClones[iCloned],
              "unique": aoOriginal[i][j].unique
            });
          }
        }

        aReturn.push(aRow);
      }

      return aReturn;
    },


    /**
     * Clone the DataTable nodes and place them in the DOM (sized correctly)
     *  @returns {void}
     *  @param   {Object} oClone Object containing the header, footer and body cloned DOM elements
     *  @param   {Object} oGrid Grid object containing the display grid elements for the cloned
     *                    column (left or right)
     *  @param   {Array} aiColumns Column indexes which should be operated on from the DataTable
     *  @param   {Boolean} bAll Indicate if the header and footer should be updated as well (true)
     *  @private
     */
    "_fnClone": function (oClone, oGrid, aiColumns, bAll) {
      var that = this,
        i, iLen, j, jLen, jq, nTarget, iColumn, nClone, iIndex, aoCloneLayout,
        jqCloneThead, aoFixedHeader,
        dt = this.s.dt;

      /*
       * Header
       */
      if (bAll) {
        $(oClone.header).remove();

        oClone.header = $(this.dom.header).clone(true, false)[0];
        oClone.header.className += " DTFC_Cloned";
        oClone.header.style.width = "100%";
        oGrid.head.appendChild(oClone.header);

        /* Copy the DataTables layout cache for the header for our floating column */
        aoCloneLayout = this._fnCopyLayout(dt.aoHeader, aiColumns, true);
        jqCloneThead = $('>thead', oClone.header);
        jqCloneThead.empty();

        /* Add the created cloned TR elements to the table */
        for (i = 0, iLen = aoCloneLayout.length; i < iLen; i++) {
          jqCloneThead[0].appendChild(aoCloneLayout[i].nTr);
        }

        /* Use the handy _fnDrawHead function in DataTables to do the rowspan/colspan
         * calculations for us
         */
        dt.oApi._fnDrawHead(dt, aoCloneLayout, true);
      } else {
        /* To ensure that we copy cell classes exactly, regardless of colspan, multiple rows
         * etc, we make a copy of the header from the DataTable again, but don't insert the
         * cloned cells, just copy the classes across. To get the matching layout for the
         * fixed component, we use the DataTables _fnDetectHeader method, allowing 1:1 mapping
         */
        aoCloneLayout = this._fnCopyLayout(dt.aoHeader, aiColumns, false);
        aoFixedHeader = [];

        dt.oApi._fnDetectHeader(aoFixedHeader, $('>thead', oClone.header)[0]);

        for (i = 0, iLen = aoCloneLayout.length; i < iLen; i++) {
          for (j = 0, jLen = aoCloneLayout[i].length; j < jLen; j++) {
            aoFixedHeader[i][j].cell.className = aoCloneLayout[i][j].cell.className;

            // If jQuery UI theming is used we need to copy those elements as well
            $('span.DataTables_sort_icon', aoFixedHeader[i][j].cell).each(function () {
              this.className = $('span.DataTables_sort_icon', aoCloneLayout[i][j].cell)[0].className;
            });
          }
        }
      }
      this._fnEqualiseHeights('thead', this.dom.header, oClone.header);

      /*
       * Body
       */
      if (this.s.sHeightMatch == 'auto') {
        /* Remove any heights which have been applied already and let the browser figure it out */
        $('>tbody>tr', that.dom.body).css('height', 'auto');
      }

      if (oClone.body !== null) {
        $(oClone.body).remove();
        oClone.body = null;
      }

      oClone.body = $(this.dom.body).clone(true)[0];
      oClone.body.className += " DTFC_Cloned";
      oClone.body.style.paddingBottom = dt.oScroll.iBarWidth + "px";
      oClone.body.style.marginBottom = (dt.oScroll.iBarWidth * 2) + "px"; /* For IE */
      if (oClone.body.getAttribute('id') !== null) {
        oClone.body.removeAttribute('id');
      }

      $('>thead>tr', oClone.body).empty();
      $('>tfoot', oClone.body).remove();

      var nBody = $('tbody', oClone.body)[0];
      $(nBody).empty();
      if (dt.aiDisplay.length > 0) {
        /* Copy the DataTables' header elements to force the column width in exactly the
         * same way that DataTables does it - have the header element, apply the width and
         * colapse it down
         */
        var nInnerThead = $('>thead>tr', oClone.body)[0];
        for (iIndex = 0; iIndex < aiColumns.length; iIndex++) {
          iColumn = aiColumns[iIndex];

          nClone = $(dt.aoColumns[iColumn].nTh).clone(true)[0];
          nClone.innerHTML = "";

          var oStyle = nClone.style;
          oStyle.paddingTop = "0";
          oStyle.paddingBottom = "0";
          oStyle.borderTopWidth = "0";
          oStyle.borderBottomWidth = "0";
          oStyle.height = 0;
          oStyle.width = that.s.aiInnerWidths[iColumn] + "px";

          nInnerThead.appendChild(nClone);
        }

        /* Add in the tbody elements, cloning form the master table */
        $('>tbody>tr', that.dom.body).each(function (z) {
          var i = that.s.dt.oFeatures.bServerSide === false ?
            that.s.dt.aiDisplay[that.s.dt._iDisplayStart + z] : z;
          var aTds = that.s.dt.aoData[i].anCells || $(this).children('td, th');

          var n = this.cloneNode(false);
          n.removeAttribute('id');
          n.setAttribute('data-dt-row', i);

          for (iIndex = 0; iIndex < aiColumns.length; iIndex++) {
            iColumn = aiColumns[iIndex];

            if (aTds.length > 0) {
              nClone = $(aTds[iColumn]).clone(true, true)[0];
              nClone.removeAttribute('id');
              nClone.setAttribute('data-dt-row', i);
              nClone.setAttribute('data-dt-column', iColumn);
              n.appendChild(nClone);
            }
          }
          nBody.appendChild(n);
        });
      } else {
        $('>tbody>tr', that.dom.body).each(function (z) {
          nClone = this.cloneNode(true);
          nClone.className += ' DTFC_NoData';
          $('td', nClone).html('');
          nBody.appendChild(nClone);
        });
      }

      oClone.body.style.width = "100%";
      oClone.body.style.margin = "0";
      oClone.body.style.padding = "0";

      // Interop with Scroller - need to use a height forcing element in the
      // scrolling area in the same way that Scroller does in the body scroll.
      if (dt.oScroller !== undefined) {
        var scrollerForcer = dt.oScroller.dom.force;

        if (!oGrid.forcer) {
          oGrid.forcer = scrollerForcer.cloneNode(true);
          oGrid.liner.appendChild(oGrid.forcer);
        } else {
          oGrid.forcer.style.height = scrollerForcer.style.height;
        }
      }

      oGrid.liner.appendChild(oClone.body);

      this._fnEqualiseHeights('tbody', that.dom.body, oClone.body);

      /*
       * Footer
       */
      if (dt.nTFoot !== null) {
        if (bAll) {
          if (oClone.footer !== null) {
            oClone.footer.parentNode.removeChild(oClone.footer);
          }
          oClone.footer = $(this.dom.footer).clone(true, true)[0];
          oClone.footer.className += " DTFC_Cloned";
          oClone.footer.style.width = "100%";
          oGrid.foot.appendChild(oClone.footer);

          /* Copy the footer just like we do for the header */
          aoCloneLayout = this._fnCopyLayout(dt.aoFooter, aiColumns, true);
          var jqCloneTfoot = $('>tfoot', oClone.footer);
          jqCloneTfoot.empty();

          for (i = 0, iLen = aoCloneLayout.length; i < iLen; i++) {
            jqCloneTfoot[0].appendChild(aoCloneLayout[i].nTr);
          }
          dt.oApi._fnDrawHead(dt, aoCloneLayout, true);
        } else {
          aoCloneLayout = this._fnCopyLayout(dt.aoFooter, aiColumns, false);
          var aoCurrFooter = [];

          dt.oApi._fnDetectHeader(aoCurrFooter, $('>tfoot', oClone.footer)[0]);

          for (i = 0, iLen = aoCloneLayout.length; i < iLen; i++) {
            for (j = 0, jLen = aoCloneLayout[i].length; j < jLen; j++) {
              aoCurrFooter[i][j].cell.className = aoCloneLayout[i][j].cell.className;
            }
          }
        }
        this._fnEqualiseHeights('tfoot', this.dom.footer, oClone.footer);
      }

      /* Equalise the column widths between the header footer and body - body get's priority */
      var anUnique = dt.oApi._fnGetUniqueThs(dt, $('>thead', oClone.header)[0]);
      $(anUnique).each(function (i) {
        iColumn = aiColumns[i];
        this.style.width = that.s.aiInnerWidths[iColumn] + "px";
      });

      if (that.s.dt.nTFoot !== null) {
        anUnique = dt.oApi._fnGetUniqueThs(dt, $('>tfoot', oClone.footer)[0]);
        $(anUnique).each(function (i) {
          iColumn = aiColumns[i];
          this.style.width = that.s.aiInnerWidths[iColumn] + "px";
        });
      }
    },


    /**
     * From a given table node (THEAD etc), get a list of TR direct child elements
     *  @param   {Node} nIn Table element to search for TR elements (THEAD, TBODY or TFOOT element)
     *  @returns {Array} List of TR elements found
     *  @private
     */
    "_fnGetTrNodes": function (nIn) {
      var aOut = [];
      for (var i = 0, iLen = nIn.childNodes.length; i < iLen; i++) {
        if (nIn.childNodes[i].nodeName.toUpperCase() == "TR") {
          aOut.push(nIn.childNodes[i]);
        }
      }
      return aOut;
    },


    /**
     * Equalise the heights of the rows in a given table node in a cross browser way
     *  @returns {void}
     *  @param   {String} nodeName Node type - thead, tbody or tfoot
     *  @param   {Node} original Original node to take the heights from
     *  @param   {Node} clone Copy the heights to
     *  @private
     */
    "_fnEqualiseHeights": function (nodeName, original, clone) {
      if (this.s.sHeightMatch == 'none' && nodeName !== 'thead' && nodeName !== 'tfoot') {
        return;
      }

      var that = this,
        i, iLen, iHeight, iHeight2, iHeightOriginal, iHeightClone,
        rootOriginal = original.getElementsByTagName(nodeName)[0],
        rootClone = clone.getElementsByTagName(nodeName)[0],
        jqBoxHack = $('>' + nodeName + '>tr:eq(0)', original).children(':first'),
        iBoxHack = jqBoxHack.outerHeight() - jqBoxHack.height(),
        anOriginal = this._fnGetTrNodes(rootOriginal),
        anClone = this._fnGetTrNodes(rootClone),
        heights = [];

      for (i = 0, iLen = anClone.length; i < iLen; i++) {
        iHeightOriginal = anOriginal[i].offsetHeight;
        iHeightClone = anClone[i].offsetHeight;
        iHeight = iHeightClone > iHeightOriginal ? iHeightClone : iHeightOriginal;

        if (this.s.sHeightMatch == 'semiauto') {
          anOriginal[i]._DTTC_iHeight = iHeight;
        }

        heights.push(iHeight);
      }

      for (i = 0, iLen = anClone.length; i < iLen; i++) {
        anClone[i].style.height = heights[i] + "px";
        anOriginal[i].style.height = heights[i] + "px";
      }
    },

    /**
     * Determine if the UA suffers from Firefox's overflow:scroll scrollbars
     * not being shown bug.
     *
     * Firefox doesn't draw scrollbars, even if it is told to using
     * overflow:scroll, if the div is less than 34px height. See bugs 292284 and
     * 781885. Using UA detection here since this is particularly hard to detect
     * using objects - its a straight up rendering error in Firefox.
     *
     * @return {boolean} True if Firefox error is present, false otherwise
     */
    _firefoxScrollError: function () {
      if (_firefoxScroll === undefined) {
        var test = $('<div/>')
          .css({
            position: 'absolute',
            top: 0,
            left: 0,
            height: 10,
            width: 50,
            overflow: 'scroll'
          })
          .appendTo('body');

        // Make sure this doesn't apply on Macs with 0 width scrollbars
        _firefoxScroll = (
          test[0].clientWidth === test[0].offsetWidth && this._fnDTOverflow().bar !== 0
        );

        test.remove();
      }

      return _firefoxScroll;
    }
  });


  /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
   * Statics
   * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

  /**
   * FixedColumns default settings for initialisation
   *  @name FixedColumns.defaults
   *  @namespace
   *  @static
   */
  FixedColumns.defaults = /** @lends FixedColumns.defaults */{
    /**
     * Number of left hand columns to fix in position
     *  @type     int
     *  @default  1
     *  @static
     *  @example
     *      var  = $('#example').dataTable( {
     *          "scrollX": "100%"
     *      } );
     *      new $.fn.dataTable.fixedColumns( table, {
     *          "leftColumns": 2
     *      } );
     */
    "iLeftColumns": 1,

    /**
     * Number of right hand columns to fix in position
     *  @type     int
     *  @default  0
     *  @static
     *  @example
     *      var table = $('#example').dataTable( {
     *          "scrollX": "100%"
     *      } );
     *      new $.fn.dataTable.fixedColumns( table, {
     *          "rightColumns": 1
     *      } );
     */
    "iRightColumns": 0,

    /**
     * Draw callback function which is called when FixedColumns has redrawn the fixed assets
     *  @type     function(object, object):void
     *  @default  null
     *  @static
     *  @example
     *      var table = $('#example').dataTable( {
     *          "scrollX": "100%"
     *      } );
     *      new $.fn.dataTable.fixedColumns( table, {
     *          "drawCallback": function () {
     *	            alert( "FixedColumns redraw" );
     *	        }
     *      } );
     */
    "fnDrawCallback": null,

    /**
     * Height matching algorthim to use. This can be "none" which will result in no height
     * matching being applied by FixedColumns (height matching could be forced by CSS in this
     * case), "semiauto" whereby the height calculation will be performed once, and the result
     * cached to be used again (fnRecalculateHeight can be used to force recalculation), or
     * "auto" when height matching is performed on every draw (slowest but must accurate)
     *  @type     string
     *  @default  semiauto
     *  @static
     *  @example
     *      var table = $('#example').dataTable( {
     *          "scrollX": "100%"
     *      } );
     *      new $.fn.dataTable.fixedColumns( table, {
     *          "heightMatch": "auto"
     *      } );
     */
    "sHeightMatch": "semiauto"
  };


  /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
   * Constants
   * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

  /**
   * FixedColumns version
   *  @name      FixedColumns.version
   *  @type      String
   *  @default   See code
   *  @static
   */
  FixedColumns.version = "3.3.2";


  /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
   * DataTables API integration
   * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

  DataTable.Api.register('fixedColumns()', function () {
    return this;
  });

  DataTable.Api.register('fixedColumns().update()', function () {
    return this.iterator('table', function (ctx) {
      if (ctx._oFixedColumns) {
        ctx._oFixedColumns.fnUpdate();
      }
    });
  });

  DataTable.Api.register('fixedColumns().relayout()', function () {
    return this.iterator('table', function (ctx) {
      if (ctx._oFixedColumns) {
        ctx._oFixedColumns.fnRedrawLayout();
      }
    });
  });

  DataTable.Api.register('rows().recalcHeight()', function () {
    return this.iterator('row', function (ctx, idx) {
      if (ctx._oFixedColumns) {
        ctx._oFixedColumns.fnRecalculateHeight(this.row(idx).node());
      }
    });
  });

  DataTable.Api.register('fixedColumns().rowIndex()', function (row) {
    row = $(row);

    return row.parents('.DTFC_Cloned').length ?
      this.rows({page: 'current'}).indexes()[row.index()] :
      this.row(row).index();
  });

  DataTable.Api.register('fixedColumns().cellIndex()', function (cell) {
    cell = $(cell);

    if (cell.parents('.DTFC_Cloned').length) {
      var rowClonedIdx = cell.parent().index();
      var rowIdx = this.rows({page: 'current'}).indexes()[rowClonedIdx];
      var columnIdx;

      if (cell.parents('.DTFC_LeftWrapper').length) {
        columnIdx = cell.index();
      } else {
        var columns = this.columns().flatten().length;
        columnIdx = columns - this.context[0]._oFixedColumns.s.iRightColumns + cell.index();
      }

      return {
        row: rowIdx,
        column: this.column.index('toData', columnIdx),
        columnVisible: columnIdx
      };
    } else {
      return this.cell(cell).index();
    }
  });

  DataTable.Api.registerPlural('cells().fixedNodes()', 'cell().fixedNode()', function () {
    return this.iterator('cell', function (settings, row, column) {
      return settings._oFixedColumns
        ? settings._oFixedColumns.fnToFixedNode(row, column)
        : this.cell(row, column).node();
    }, 1);
  });


  /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
   * Initialisation
   * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

// Attach a listener to the document which listens for DataTables initialisation
// events so we can automatically initialise
  $(document).on('init.dt.fixedColumns', function (e, settings) {
    if (e.namespace !== 'dt') {
      return;
    }

    var init = settings.oInit.fixedColumns;
    var defaults = DataTable.defaults.fixedColumns;

    if (init || defaults) {
      var opts = $.extend({}, init, defaults);

      if (init !== false) {
        new FixedColumns(settings, opts);
      }
    }
  });


// Make FixedColumns accessible from the DataTables instance
  $.fn.dataTable.FixedColumns = FixedColumns;
  $.fn.DataTable.FixedColumns = FixedColumns;

  return FixedColumns;
}));
